<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>元素选择器</title>
    <style>
        .txt{
        	color:blue;
        	font-size:60px; 
           }
		p{
			color:red;
			font-size:50px;  
		}
		#myText{
			color:pink;
			font-size:80px;  
		}
	</style>
</head>
<body>
      <p class="txt">123456789123456798</p>
      <p id="myText">123456789123456798</p>
      <p>123456789123456798</p>
      <p>123456789123456798</p>
      <p>123456789123456798</p>
      <p>123456789123456798</p>
</body>
</html>